//stdafx.h #import c:\program files\common files\system\ado\msado15.dll no_namespace rename(EOF,adoEOF) //主程序初始化函数 BOOL CADO2App::InitInstance() { AfxEnableControlContainer(); AfxOleInit();//初始化COM库 //--------------------------
//stdafx.h
#import "c:\program files\common files\system\ado\msado15.dll" no_namespace rename("EOF","adoEOF")
//主程序初始化函数
BOOL CADO2App::InitInstance()
{
AfxEnableControlContainer();
AfxOleInit();//初始化COM库
//--------------------------------------------
下面是ACCESS的:
HRESULT hr;
try
{
hr = m_pConnection.CreateInstance("ADODB.Connection");///创建Connection对象
if(SUCCEEDED(hr)) {
hr = m_pConnection->Open("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=test.mdb","","",adModeUnknown);///连接数据库
///上面一句中连接字串中的Provider是针对ACCESS2000环境的,对于ACCESS97,需要改为:Provider=Microsoft.Jet.OLEDB.3.51; }
}
}
catch(_com_error e)///捕捉异常
{
CString errormessage;
errormessage.Format("连接数据库失败!\r\n错误信息:%s",e.ErrorMessage());
AfxMessageBox(errormessage);///显示错误信息
return FALSE;
}
下面是连接SQL SERVER的
CString strSQL;
HRESULT hr;
try
{
hr=m_pConnection.CreateInstance(__uuidof(Connection));
m_pConnection->CursorLocation=adUseClient;
strSQL="Provider=SQLOLEDB.1;Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=TEST;Data Source=yjm";
if(SUCCEEDED(hr))
{
hr=m_pConnection->Open(_bstr_t(strSQL),"","",-1);
}
}
catch(_com_error e)///捕捉异常
{
CString errormessage;
errormessage.Format("连接数据库失败!\r\n错误信息:%s",e.ErrorMessage());
AfxMessageBox(errormessage);///显示错误信息
return FALSE;
}
//AfxMessageBox("connected~~");
其中:
----- ADO连接SQL Server的数据库连接字符串模板----------
身份验证模式为:"sql server和windows"
Provider=SQLOLEDB.1;Persist Security Info=True;User ID=用户名;Password=密码;Initial Catalog=数据库名;Data Source=SQL服务器名
身份验证模式为:"仅windows"
Provider=SQLOLEDB.1;Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=数据库名;Data Source=SQL服务器名
注:表名有中文,sqlserver中select的时候要加[]

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